OPTIONAL ACCESSORY CHART
You may need an eyepiece as sold separately. The telescope does not come with the eyepiece as standard accessory
unless you purchased a package.
Visual Configuration
Magnification of the Telescope
Photographic Configuration
When using an eyepiece with short focal length (small number in millimeters), the image will be dim and the range of sharp focus will be small.
The image will be harder to see so begin with an eyepiece with long focal length (low magnification).
Dividing the focal length of the telescope by the focal length of the eyepiece gives the magnification.
Example: Calculating the eyepiece magnification of a telescope with 800mm focal length.
Eyepiece Focal length of telescope Focal length of eyepiece Magnification
NLV20mm 800mm
÷
20mm = 40x
NLV 5mm 800mm
÷
5mm = 160x
60mm Ring w/
T-thread Adapter
(Supplied)
Coma Corrector III
(Not usable with Tele-Extender.)
Tele-Extender R200SS
(Not usable with Coma Corrector.)
R200SS Optical Tube
Eyepiece Projection Photography
Collimation Photography(Afocal Imaging)
Prime Focus Photography
T-C Ring
Digital Camera Quick Bracket II
(D)SLR
Camera
T-ring
Vixen NPV Eyepiece 31.7mm *NPL40mm is an exception.
Vixen NLV Eyepiece 31.7mm
Compact Digital Camera
LCD / TV Monitor
CCD Imaging Camera
(with C-mount)
Some of the optional accessories shown in this chart will be needed if you take pictures with (D)SLR camera, compact digital
camera or CCD video camera.
Ring for either Eyepiece Projection Camera Adapter
EA42mm to
31.7mm SX
(Supplied)
R200SS
Optical
Tube
60mm Ring w/T-thread Adapter (Supplied)
EA42mm to 31.7mm SX (Supplied)
Focus Knob
Eyepiece 31.7mm(Optional)
Eyepiece 50.8mm(Optional)
Compression Ring 50.8mm
(This part may be optional at
your particular model)
Focusing Tension Adjustment
(Use to hold the drawtube.)
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